[   10.991647][  T251] ip (251) used greatest stack depth: 23360 bytes left
[   16.243884][  T339] 8021q: 802.1Q VLAN Support v1.8
[   16.596617][  T344] gre: GRE over IPv4 demultiplexor driver
[   16.649834][  T344] ip6_gre: GRE over IPv6 tunneling driver
[   26.148214][  T419] GACT probability NOT on
[   26.558138][  T422] 
[   26.558396][  T422] =============================
[   26.558567][  T422] WARNING: suspicious RCU usage
[   26.558751][  T422] 6.14.0-rc6-virtme #1 Not tainted
[   26.558942][  T422] -----------------------------
[   26.559280][  T422] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   26.559559][  T422] 
[   26.559559][  T422] other info that might help us debug this:
[   26.559559][  T422] 
[   26.559872][  T422] 
[   26.559872][  T422] rcu_scheduler_active = 2, debug_locks = 1
[   26.560140][  T422] 1 lock held by mausezahn/422:
[   26.560311][  T422]  #0: ffffffff9655b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   26.560619][  T422] 
[   26.560619][  T422] stack backtrace:
[   26.560820][  T422] CPU: 1 UID: 0 PID: 422 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   26.560824][  T422] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.560826][  T422] Call Trace:
[   26.560828][  T422]  <TASK>
[   26.560830][  T422]  dump_stack_lvl+0xb0/0xd0
[   26.560838][  T422]  lockdep_rcu_suspicious+0x1ea/0x280
[   26.560848][  T422]  dev_hard_start_xmit+0x2fc/0x3f0
[   26.560858][  T422]  __dev_queue_xmit+0xfaf/0x18d0
[   26.560873][  T422]  ? __pfx___dev_queue_xmit+0x10/0x10
[   26.560877][  T422]  ? packet_parse_headers+0x231/0x9c0
[   26.560885][  T422]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   26.560891][  T422]  ? __pfx_packet_parse_headers+0x10/0x10
[   26.560896][  T422]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   26.560901][  T422]  ? dev_get_by_index+0xb2/0x190
[   26.560912][  T422]  packet_snd+0xd0c/0x19d0
[   26.560923][  T422]  ? __lock_release+0x103/0x460
[   26.560927][  T422]  ? __might_fault+0x11b/0x170
[   26.560934][  T422]  ? __pfx_packet_snd+0x10/0x10
[   26.560936][  T422]  ? trace_lock_acquire+0x14c/0x1f0
[   26.560938][  T422]  ? __might_fault+0x11b/0x170
[   26.560945][  T422]  ? lock_acquire+0x32/0xc0
[   26.560951][  T422]  ? __might_fault+0x11b/0x170
[   26.560962][  T422]  __sys_sendto+0x3c3/0x450
[   26.560968][  T422]  ? __pfx___sys_sendto+0x10/0x10
[   26.560982][  T422]  ? sock_ioctl+0x3b6/0x590
[   26.560992][  T422]  ? __pfx___up_read+0x10/0x10
[   26.561000][  T422]  ? do_user_addr_fault+0x374/0xe30
[   26.561010][  T422]  ? do_user_addr_fault+0x374/0xe30
[   26.561017][  T422]  __x64_sys_sendto+0xe0/0x1c0
[   26.561020][  T422]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   26.561026][  T422]  do_syscall_64+0xc1/0x1d0
[   26.561033][  T422]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   26.561038][  T422] RIP: 0033:0x7f0d3f1dca4a
[   26.561045][  T422] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
[   26.561048][  T422] RSP: 002b:00007ffce6765338 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   26.561052][  T422] RAX: ffffffffffffffda RBX: 000000001e5209d0 RCX: 00007f0d3f1dca4a
[   26.561054][  T422] RDX: 0000000000000062 RSI: 000000001e5205c2 RDI: 0000000000000005
[   26.561056][  T422] RBP: 000000001e5205c2 R08: 00007ffce6765340 R09: 0000000000000014
[   26.561058][  T422] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   26.561060][  T422] R13: 0000000000000062 R14: 00007ffce6765340 R15: 0000000000000000
[   26.561075][  T422]  </TASK>